Description

Disodium 5-[[4-[[(4-Methylphenyl)Sulphonyl]Oxy]Phenyl]Azo]-8-[[4-[(4-Nitro-2-Sulphonatophenyl)Amino]Phenyl]Azo]Naphthalene-2-Sulphonate is a high-purity, synthetic azo dye intermediate characterized by its complex disulphonated structure. This compound is engineered to deliver exceptional color strength and thermal stability, making it a critical component for producing advanced, high-performance pigments. It is primarily required by manufacturers in the inks, coatings, plastics, and specialty textile industries seeking to formulate vibrant and durable colors.

Application

• High-Performance Pigment Manufacturing: Serves as a key precursor for producing complex organic pigments (Pigment Reds, Oranges) with superior lightfastness and weather resistance.
• Industrial Inks and Toners: Used in the synthesis of colorants for printing inks, including packaging, publication, and specialty digital inks.
• Plastics and Masterbatch Coloring: Imparts stable and intense coloration to engineering plastics, synthetic fibers, and polymer masterbatches.
• Automotive and Industrial Coatings: Essential for developing pigments used in coatings that require long-term durability against UV exposure and harsh environmental conditions.
• Specialty Textile Dyes: Acts as an intermediate for dyes targeting synthetic fibers like polyester and nylon, where high wash and light fastness are critical.
• Research and Development: Utilized in chemical R&D for creating novel chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Item	Details
Product Name	Disodium 5-[[4-[[(4-Methylphenyl)Sulphonyl]Oxy]Phenyl]Azo]-8-[[4-[(4-Nitro-2-Sulphonatophenyl)Amino]Phenyl]Azo]Naphthalene-2-Sulphonate
CAS No.	72968-80-0
Molecular Formula	C35H23N5Na2O12S3
Molecular Weight	855.73 g/mol
Synonyms	Disodium 5-[[4-[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-8-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]naphthalene-2-sulfonate; CI 27290; Pigment Red 272; Azo dye intermediate 72968-80-0; 5-[[4-[[(4-Methylphenyl)sulfonyl]oxy]phenyl]azo]-8-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]-2-naphthalenesulfonic acid disodium salt; 2-Naphthalenesulfonic acid, 5-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-8-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. A detailed Certificate of Analysis (COA) documenting assay, impurity profile, and physical specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after initial use to prevent moisture absorption, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.